US4523436A - Incrementally adjustable electronic expansion valve - Google Patents

Incrementally adjustable electronic expansion valve Download PDF

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Publication number
US4523436A
US4523436A US06/564,543 US56454383A US4523436A US 4523436 A US4523436 A US 4523436A US 56454383 A US56454383 A US 56454383A US 4523436 A US4523436 A US 4523436A
Authority
US
United States
Prior art keywords
sleeve member
orifice
expansion valve
refrigerant
electronic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US06/564,543
Other languages
English (en)
Inventor
John W. Schedel
Richard G. Lord
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carrier Corp
Original Assignee
Carrier Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Carrier Corp filed Critical Carrier Corp
Assigned to CARRIER CORPORATION reassignment CARRIER CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: LORD, RICHARD G., SCHEDEL, JOHN W.
Priority to US06/564,543 priority Critical patent/US4523436A/en
Priority to AU33352/84A priority patent/AU552320B2/en
Priority to CA000467579A priority patent/CA1230746A/en
Priority to IN842/CAL/84A priority patent/IN162197B/en
Priority to DK595984A priority patent/DK166169C/da
Priority to EP84630198A priority patent/EP0147357B1/en
Priority to DE8484630198T priority patent/DE3481871D1/de
Priority to BR8406542A priority patent/BR8406542A/pt
Priority to PH31617A priority patent/PH21320A/en
Priority to MX203836A priority patent/MX157987A/es
Priority to JP59270581A priority patent/JPS60155872A/ja
Priority to KR1019840008325A priority patent/KR890005334B1/ko
Priority to EG801/84A priority patent/EG17423A/xx
Publication of US4523436A publication Critical patent/US4523436A/en
Application granted granted Critical
Priority to MYPI87002424A priority patent/MY101113A/en
Priority to SG48290A priority patent/SG48290G/en
Priority to HK971/90A priority patent/HK97190A/xx
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
    • F25B41/35—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators by rotary motors, e.g. by stepping motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2117—Temperatures of an evaporator
    • F25B2700/21174—Temperatures of an evaporator of the refrigerant at the inlet of the evaporator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2117—Temperatures of an evaporator
    • F25B2700/21175—Temperatures of an evaporator of the refrigerant at the outlet of the evaporator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S251/00—Valves and valve actuation
    • Y10S251/90—Valves with o-rings

Definitions

  • the sleeve member 33 has a relatively long stroke and the slot 38 in the orifice assembly 25 is relatively long compared to orifices in conventional refrigerant expansion valves.
  • the length of the slot 38 in the orifice assembly 25 may be on the order of 3/4 of an inch (19.05 millimeters) with the sleeve member 33 having incremental steps of movement on the order of 0.001 inch (0.0254 millimeters) per step thereby providing approximately 760 discrete opening sizes for the slot 38.
  • first and second annular sealing means 36, 37 substantially prevent refrigerant flow between the refrigerant inlet 31 and the refrigerant outlet 32 of the valve 10.
  • the first sealing means 36 comprises a carbon filled teflon seal 53 backed by an O-ring 54 while the second sealing means 37 comprises another carbon filled teflon seal 50 backed by two O-rings 51 and 52.
  • Each sealing means 36, 37 is seated in an annular recess in the main body of the orifice assembly 25.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Temperature-Responsive Valves (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
US06/564,543 1983-12-22 1983-12-22 Incrementally adjustable electronic expansion valve Expired - Lifetime US4523436A (en)

Priority Applications (16)

Application Number Priority Date Filing Date Title
US06/564,543 US4523436A (en) 1983-12-22 1983-12-22 Incrementally adjustable electronic expansion valve
AU33352/84A AU552320B2 (en) 1983-12-22 1984-09-20 Adjustable electronic expansion valve
CA000467579A CA1230746A (en) 1983-12-22 1984-11-13 Incrementally adjustable electronic expansion valve
IN842/CAL/84A IN162197B (zh) 1983-12-22 1984-12-05
DK595984A DK166169C (da) 1983-12-22 1984-12-13 Koelesystem og inkrementalt regulerbar ekspansionsventil
EP84630198A EP0147357B1 (en) 1983-12-22 1984-12-14 Refrigeration system and incrementally adjustable electronic expansion valve
DE8484630198T DE3481871D1 (de) 1983-12-22 1984-12-14 Kuehlsystem und inkremental regelbares elektronisches expansionsventil.
BR8406542A BR8406542A (pt) 1983-12-22 1984-12-18 Um sistema de refrigeracao que inclui uma valvula de expansao eletronicamente ajustavel e a dita valvula de expansao
PH31617A PH21320A (en) 1983-12-22 1984-12-20 Incrementally adjustable electronic expansion valve
MX203836A MX157987A (es) 1983-12-22 1984-12-20 Mejoras en una valvula de expansion de refrigerante electronica
JP59270581A JPS60155872A (ja) 1983-12-22 1984-12-21 電子式冷媒膨張弁
KR1019840008325A KR890005334B1 (ko) 1983-12-22 1984-12-22 증분 조절 가능한 전자식 팽창밸브를 구비한· 냉동시스템
EG801/84A EG17423A (en) 1983-12-22 1984-12-23 An incrementally adjustable electronic expansion valve
MYPI87002424A MY101113A (en) 1983-12-22 1987-09-30 An incrementally adjustable electronic expansion valve.
SG48290A SG48290G (en) 1983-12-22 1990-06-30 Refrigeration system and incrementally adjustable electronic expansion valve
HK971/90A HK97190A (en) 1983-12-22 1990-11-22 Refrigeration system and incrementally adjustable electronic expansion valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/564,543 US4523436A (en) 1983-12-22 1983-12-22 Incrementally adjustable electronic expansion valve

Publications (1)

Publication Number Publication Date
US4523436A true US4523436A (en) 1985-06-18

Family

ID=24254903

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/564,543 Expired - Lifetime US4523436A (en) 1983-12-22 1983-12-22 Incrementally adjustable electronic expansion valve

Country Status (16)

Country Link
US (1) US4523436A (zh)
EP (1) EP0147357B1 (zh)
JP (1) JPS60155872A (zh)
KR (1) KR890005334B1 (zh)
AU (1) AU552320B2 (zh)
BR (1) BR8406542A (zh)
CA (1) CA1230746A (zh)
DE (1) DE3481871D1 (zh)
DK (1) DK166169C (zh)
EG (1) EG17423A (zh)
HK (1) HK97190A (zh)
IN (1) IN162197B (zh)
MX (1) MX157987A (zh)
MY (1) MY101113A (zh)
PH (1) PH21320A (zh)
SG (1) SG48290G (zh)

Cited By (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4674292A (en) * 1984-07-26 1987-06-23 Sanyo Electric Co., Ltd. System for controlling flow rate of refrigerant
US4742689A (en) * 1986-03-18 1988-05-10 Mydax, Inc. Constant temperature maintaining refrigeration system using proportional flow throttling valve and controlled bypass loop
US4745767A (en) * 1984-07-26 1988-05-24 Sanyo Electric Co., Ltd. System for controlling flow rate of refrigerant
EP0348333A1 (en) * 1988-06-20 1989-12-27 Carrier Corporation Quench expansion valve refrigeration circuit
US4911404A (en) * 1989-07-28 1990-03-27 Sporlan Valve Company Electronically operated expansion valve
US4928494A (en) * 1988-12-20 1990-05-29 American Standard Inc. Incremental electrically actuated valve
US4986085A (en) * 1989-09-12 1991-01-22 American Standard Inc. Incremental electrically actuated valve
US5295656A (en) * 1992-09-25 1994-03-22 Parker Hannifin Corporation Expansion valve for air conditioning system with proportional solenoid
US5311748A (en) * 1992-08-12 1994-05-17 Copeland Corporation Control system for heat pump having decoupled sensor arrangement
US5329462A (en) * 1992-12-24 1994-07-12 Carrier Corporation Expansion valve control
US5388968A (en) * 1994-01-12 1995-02-14 Ingersoll-Rand Company Compressor inlet valve
US5392612A (en) * 1984-08-08 1995-02-28 Richard H. Alsenz Refrigeration system having a self adjusting control range
US5402652A (en) * 1984-08-08 1995-04-04 Alsenz; Richard H. Apparatus for monitoring solenoid expansion valve flow rates
US5417083A (en) * 1993-09-24 1995-05-23 American Standard Inc. In-line incremetally adjustable electronic expansion valve
WO1995021360A1 (fr) * 1994-02-01 1995-08-10 Jacques Bernier Dispositif de production de froid avec cycle economiseur d'energie a modulation de debit
US5460349A (en) * 1992-09-25 1995-10-24 Parker-Hannifin Corporation Expansion valve control element for air conditioning system
US5540558A (en) * 1995-08-07 1996-07-30 Ingersoll-Rand Company Apparatus and method for electronically controlling inlet flow and preventing backflow in a compressor
US5628201A (en) * 1995-04-03 1997-05-13 Copeland Corporation Heating and cooling system with variable capacity compressor
US5715704A (en) * 1996-07-08 1998-02-10 Ranco Incorporated Of Delaware Refrigeration system flow control expansion valve
US6286327B1 (en) * 1996-12-09 2001-09-11 Valeo Climatisation Refrigerant fluid circuit including an air conditioning loop and a heating loop, in particular for a motor vehicle
US6321548B1 (en) * 2000-03-31 2001-11-27 Heatcraft Inc. Apparatus for automatically closing a cooling system expansion valve in response to power loss
US6374631B1 (en) * 2000-03-27 2002-04-23 Carrier Corporation Economizer circuit enhancement
US6560986B1 (en) 2002-03-07 2003-05-13 Jeffrey K. Welch Refrigeration valve and system
US6827330B2 (en) 2000-09-29 2004-12-07 Danfoss A/S Pressure regulating valve for a refrigerating plant
US20060150648A1 (en) * 2004-12-21 2006-07-13 Lg Electronics Inc. Air conditioner
US20080309280A1 (en) * 2007-06-15 2008-12-18 American Standard International Inc Calibrating stepper motor by driving fractional ranges
US20090071175A1 (en) * 2007-09-19 2009-03-19 Emerson Climate Technologies, Inc. Refrigeration monitoring system and method
US7878006B2 (en) 2004-04-27 2011-02-01 Emerson Climate Technologies, Inc. Compressor diagnostic and protection system and method
US8160827B2 (en) 2007-11-02 2012-04-17 Emerson Climate Technologies, Inc. Compressor sensor module
US20130082199A1 (en) * 2011-09-30 2013-04-04 Michio Matsumoto Control valve
US8475136B2 (en) 2003-12-30 2013-07-02 Emerson Climate Technologies, Inc. Compressor protection and diagnostic system
US20130193356A1 (en) * 2012-01-31 2013-08-01 Randall Scott Collison Anti-rotation assemblies for use with fluid valves
US8578724B2 (en) 2009-03-13 2013-11-12 Carrier Corporation Heat pump and method of operation
US8590325B2 (en) 2006-07-19 2013-11-26 Emerson Climate Technologies, Inc. Protection and diagnostic module for a refrigeration system
US8964338B2 (en) 2012-01-11 2015-02-24 Emerson Climate Technologies, Inc. System and method for compressor motor protection
US8974573B2 (en) 2004-08-11 2015-03-10 Emerson Climate Technologies, Inc. Method and apparatus for monitoring a refrigeration-cycle system
US9140728B2 (en) 2007-11-02 2015-09-22 Emerson Climate Technologies, Inc. Compressor sensor module
US20150276082A1 (en) * 2014-03-27 2015-10-01 Fujikoki Corporation Electrically operated valve
US9285802B2 (en) 2011-02-28 2016-03-15 Emerson Electric Co. Residential solutions HVAC monitoring and diagnosis
US9291280B2 (en) 2012-07-12 2016-03-22 Fisher Controls International, Llc Actuator apparatus having internal passageways
US9310094B2 (en) 2007-07-30 2016-04-12 Emerson Climate Technologies, Inc. Portable method and apparatus for monitoring refrigerant-cycle systems
US9310439B2 (en) 2012-09-25 2016-04-12 Emerson Climate Technologies, Inc. Compressor having a control and diagnostic module
US9458947B2 (en) 2014-02-25 2016-10-04 Fisher Controls International Lc Actuator apparatus with internal tubing and anti-rotation mechanism
US9480177B2 (en) 2012-07-27 2016-10-25 Emerson Climate Technologies, Inc. Compressor protection module
US9551504B2 (en) 2013-03-15 2017-01-24 Emerson Electric Co. HVAC system remote monitoring and diagnosis
US9638436B2 (en) 2013-03-15 2017-05-02 Emerson Electric Co. HVAC system remote monitoring and diagnosis
US9765979B2 (en) 2013-04-05 2017-09-19 Emerson Climate Technologies, Inc. Heat-pump system with refrigerant charge diagnostics
US9823632B2 (en) 2006-09-07 2017-11-21 Emerson Climate Technologies, Inc. Compressor data module
US9835360B2 (en) 2009-09-30 2017-12-05 Thermo Fisher Scientific (Asheville) Llc Refrigeration system having a variable speed compressor
US10488090B2 (en) 2013-03-15 2019-11-26 Emerson Climate Technologies, Inc. System for refrigerant charge verification
US10739044B2 (en) * 2018-03-07 2020-08-11 Haier Us Appliance Solutions, Inc. Method for installing expansion device in a sealed system
US20210156596A1 (en) * 2019-11-27 2021-05-27 Carrier Corporation System and method for positioning a slider of a reversing valve
US11137182B2 (en) * 2019-11-21 2021-10-05 Emerson Electric Co. Thermostatic expansion valves including interchangeable metering pins

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Publication number Priority date Publication date Assignee Title
DE3714120C1 (de) * 1987-04-28 1988-04-21 Emerson Electric Gmbh Steueranordnung fuer ein Expansionsventil einer Kaelteanlage
CH676286A5 (zh) * 1987-06-01 1990-12-28 Andres Hegglin
GB2214611A (en) * 1988-01-18 1989-09-06 New World Domestic Appliances Valves
EP0663992B1 (en) * 1992-10-15 1997-05-14 Parker Hannifin Corporation Expansion valve for air conditioning system
US6318101B1 (en) * 2000-03-15 2001-11-20 Carrier Corporation Method for controlling an electronic expansion valve based on cooler pinch and discharge superheat
AU2007338832B2 (en) * 2006-12-23 2014-05-08 The Chemours Company Fc, Llc Fluorinated compositions and systems using such compositions
US20110079286A1 (en) * 2009-10-01 2011-04-07 Hamilton Sundstrand Corporation Expansion Valve
US9874380B2 (en) 2012-06-25 2018-01-23 Rheem Manufacturing Company Apparatus and methods for controlling an electronic expansion valve in a refrigerant circuit
FR3120413B1 (fr) * 2021-03-08 2023-04-28 Schrader Vanne de detente comportant un coulisseau mobile

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US2323354A (en) * 1941-12-10 1943-07-06 Clyde M Rees Refrigerator
US2327366A (en) * 1940-08-02 1943-08-24 Grade Crossing Guard Corp Crossing protective system
US2491905A (en) * 1944-05-29 1949-12-20 Gen Controls Co Refrigerating system
DE808515C (de) * 1949-08-13 1951-07-16 Basf Ag Ventil, insbesondere fuer unter hohem Druck befindliche Leitungen
FR1186275A (fr) * 1957-12-30 1959-08-19 Vanne
US2931673A (en) * 1955-11-25 1960-04-05 John T Gondek Pressure seal
US3070974A (en) * 1959-12-14 1963-01-01 Garrett Corp Single valve refrigeration control
US3250084A (en) * 1963-09-25 1966-05-10 Carrier Corp Control systems
US3537272A (en) * 1968-08-22 1970-11-03 Hall Thermotank Intern Ltd Expansion valve control including plural sensors
US3577743A (en) * 1969-06-10 1971-05-04 Vilter Manufacturing Corp Control for refrigeration systems
US3590592A (en) * 1969-06-23 1971-07-06 Carrier Corp Refrigerant system expansion means
US3914952A (en) * 1972-06-26 1975-10-28 Sparlan Valve Company Valve control means and refrigeration systems therefor
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US4193269A (en) * 1978-08-14 1980-03-18 Carrier Corporation Apparatus for supplying a cooling liquid to a condenser of a refrigeration unit
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US4410428A (en) * 1982-07-29 1983-10-18 Pall Corporation Duplex cam-operated pressure-balanced sleeve valve
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DE808515C (de) * 1949-08-13 1951-07-16 Basf Ag Ventil, insbesondere fuer unter hohem Druck befindliche Leitungen
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US3070974A (en) * 1959-12-14 1963-01-01 Garrett Corp Single valve refrigeration control
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US3537272A (en) * 1968-08-22 1970-11-03 Hall Thermotank Intern Ltd Expansion valve control including plural sensors
US3577743A (en) * 1969-06-10 1971-05-04 Vilter Manufacturing Corp Control for refrigeration systems
US3590592A (en) * 1969-06-23 1971-07-06 Carrier Corp Refrigerant system expansion means
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US4362027A (en) * 1977-12-30 1982-12-07 Sporlan Valve Company Refrigeration control system for modulating electrically-operated expansion valves
US4193269A (en) * 1978-08-14 1980-03-18 Carrier Corporation Apparatus for supplying a cooling liquid to a condenser of a refrigeration unit
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Cited By (100)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4745767A (en) * 1984-07-26 1988-05-24 Sanyo Electric Co., Ltd. System for controlling flow rate of refrigerant
US4674292A (en) * 1984-07-26 1987-06-23 Sanyo Electric Co., Ltd. System for controlling flow rate of refrigerant
US5392612A (en) * 1984-08-08 1995-02-28 Richard H. Alsenz Refrigeration system having a self adjusting control range
US5402652A (en) * 1984-08-08 1995-04-04 Alsenz; Richard H. Apparatus for monitoring solenoid expansion valve flow rates
US4742689A (en) * 1986-03-18 1988-05-10 Mydax, Inc. Constant temperature maintaining refrigeration system using proportional flow throttling valve and controlled bypass loop
EP0348333A1 (en) * 1988-06-20 1989-12-27 Carrier Corporation Quench expansion valve refrigeration circuit
US4928494A (en) * 1988-12-20 1990-05-29 American Standard Inc. Incremental electrically actuated valve
US4911404A (en) * 1989-07-28 1990-03-27 Sporlan Valve Company Electronically operated expansion valve
US4986085A (en) * 1989-09-12 1991-01-22 American Standard Inc. Incremental electrically actuated valve
US5311748A (en) * 1992-08-12 1994-05-17 Copeland Corporation Control system for heat pump having decoupled sensor arrangement
US5460349A (en) * 1992-09-25 1995-10-24 Parker-Hannifin Corporation Expansion valve control element for air conditioning system
US5295656A (en) * 1992-09-25 1994-03-22 Parker Hannifin Corporation Expansion valve for air conditioning system with proportional solenoid
US5390897A (en) * 1992-09-25 1995-02-21 Parker Hannifin Corporation Expansion valve for air conditioning system with proportional solenoid
US5629660A (en) * 1992-09-25 1997-05-13 Parker-Hannifin Corporation Expansion valve for air conditioning system with proportional solenoid
US5329462A (en) * 1992-12-24 1994-07-12 Carrier Corporation Expansion valve control
US5417083A (en) * 1993-09-24 1995-05-23 American Standard Inc. In-line incremetally adjustable electronic expansion valve
US5388968A (en) * 1994-01-12 1995-02-14 Ingersoll-Rand Company Compressor inlet valve
WO1995021360A1 (fr) * 1994-02-01 1995-08-10 Jacques Bernier Dispositif de production de froid avec cycle economiseur d'energie a modulation de debit
US5628201A (en) * 1995-04-03 1997-05-13 Copeland Corporation Heating and cooling system with variable capacity compressor
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MY101113A (en) 1991-07-16
CA1230746A (en) 1987-12-29
EP0147357A2 (en) 1985-07-03
KR890005334B1 (ko) 1989-12-22
IN162197B (zh) 1988-04-16
PH21320A (en) 1987-09-28
DK166169B (da) 1993-03-15
BR8406542A (pt) 1985-10-15
AU3335284A (en) 1985-06-27
DK166169C (da) 1993-07-26
EG17423A (en) 1989-06-30
HK97190A (en) 1990-11-30
DK595984A (da) 1985-06-23
SG48290G (en) 1990-08-17
JPH0227583B2 (zh) 1990-06-18
DE3481871D1 (de) 1990-05-10
DK595984D0 (da) 1984-12-13
AU552320B2 (en) 1986-05-29
EP0147357A3 (en) 1986-06-04
MX157987A (es) 1988-12-27
EP0147357B1 (en) 1990-04-04
JPS60155872A (ja) 1985-08-15
KR850004327A (ko) 1985-07-11

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